In order to address the C++ object directy in qml, a different
registration is needed.
qmlRegisterType, registers the C++ class, allowing qml code to inherit
from it and make qml objects. This is needed for graphical elemnets
like profile and map
setContentProperty, registers the C++ object, thus allowing signals to be
catched.
Signed-off-by: Jan Iversen <jani@apache.org>